One idea could be a story where Fem Todoroki has to overcome her self - doubts while training in a new and challenging environment. Maybe she's sent on a special mission with a group of heroes she doesn't know well, and she has to prove herself.
A fanfic could be set during a school festival. Momo is in charge of one of the booths and Todoroki volunteers to help her. They have to deal with various problems like running out of supplies. Momo creates new items with her quirk while Todoroki helps with keeping things cool (literally with his ice) or heating up things when needed. In the process, they share some personal stories and get closer, realizing they have more in common than they thought.
A great plot twist could be that Fem Todoroki is actually a spy for the villains, but she has her own reasons for doing so that are not as black - and - white as they seem. Maybe she's trying to protect someone she loves from the villains' wrath.
Self - discovery is also seen often. The female characters in these fanfics, while interacting with Todoroki, also go through their own journey of self - discovery. They might learn more about their own powers, their place in the hero world, and how they can grow as individuals in relation to Todoroki's presence in their lives.
One great Todoroki female fanfic is 'A New Perspective on Todoroki'. It focuses on a female character's unique relationship with Todoroki. She sees him not just as a hero, but as a complex person with his own struggles. The story has some really heart - warming moments as they grow closer and understand each other better.
One popular idea is an alternate universe where the characters have different quirks. For example, Bakugo could have a healing quirk instead of his explosive one, which would completely change his character arc and relationships. Another idea is a time - travel fanfic, where a character goes back in time to prevent a major disaster in the My Hero Academia world. It could be Deku traveling back to stop All for One from ever rising to power. And then there are the 'what - if' scenarios, like what if Izuku never got One for All? How would his life and the story unfold without this power?
One idea could be that Izuku develops his own unique quirk without the initial setbacks. Maybe he discovers a latent power within himself through intense training and self - discovery. This would change the entire dynamic of his journey in the hero academia. He could be more confident from the start and not have to face the same kind of ridicule and self - doubt.
One idea could be a fusion between Deku and All Might. Imagine Deku having not just One For All, but also All Might's combat experience and charisma from the start. It would change the dynamic of his battles and his relationships with other characters. Another idea is fusing Todoroki with a water - based hero, which could enhance his ice and water abilities even more and lead to new and creative ways of using his quirk in combat and rescue situations.
One idea could be to have the heroes and villains participate in a Halloween-themed battle royale. The setting could be a spooky, abandoned city filled with Halloween decorations. Another idea is to have a Halloween party at UA High School where students dress up as different heroes or villains from history. They could then have a contest for the best costume.
An interesting concept for a 'boku no hero academia oc fanfic' is an OC who is a villain at first but then slowly realizes the error of their ways. Their quirk could be something that is initially seen as very menacing, like the power to steal the quirks of others temporarily. As the story progresses, they could start using this quirk for good, like helping heroes regain their lost quirks in battles against stronger villains.
One idea could be creating a fanfic where a new student with a unique quirk joins U.A. High School. This new character could have a quirk that is both a blessing and a curse, like the ability to control time but at the cost of their own health. Another idea is to write a story about the villains' backstories in more detail. Maybe explore how they became villains and what events led them to oppose the heroes.